Traction-engine.



No. 762,380. S PATENTED JUNE 14,1904 w. M. BROWN. TRACTION ENGINE.

APPLIOATIOH FILED MAB. 31, 1904.

K0 MODEL.

la 2 55A T1=\fb. g, WITNESSES: INVENTOR ATTORNEY a citizen ofthe United States, residing at Laengines which provides for lateral adjustment a driving-pulley on the machine to be driven,

' tached to the front end of the boiler, along UNITED STATES PATENT OFFICE.

WELLINGTON 'M. BROWN, 0F L'APORTE, MICHIGAN, .ASSIG-NOR ()F'ONEJ HALF TO SHELDON RINEHART, or LAPORTE, MICHIGAN.

TRACTION-ENGINE.

SPECIFICATION forming part-of Letters Patent No. 762,380, dated June 14, 1904.

Application filed March 31,1904

To'all whom. it may concern:

Be it known that I, WELLINGTON M. BROWN,

porte, in the county of Midland and State of Michigan, have invented certain new and useful Improvements in Threshing-Engines; and I do hereby declare the following to be a full,' clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is an improved front-axle construetionfor traction or plain threshing of the front end of the boiler.

As is well known it is customary to belt the belt-wheel of a traction-engine standing at a distance from the threshing-machine to usually located inside a barn. To insure safety from fire, the engine is usually required to be not less than fifty feet from the barn. It is thus seen that a long belt is necessary. It is found in practice that these long belts are thrown out of line very easily. A strong wind frequently shifts'the belt, or the pulsation of the engine causes the engine-wheels to shift,'throwing' the belt off the pulley and partly displacing it, thereby greatly reducing the power-transmitting capacity of the belt. It is then necessary to move the engine back into line, and this has heretofore been accomplished by jacking the front wheels to one. side 0 the other. To more easily attain this object, I have devised a simple-handpperated means for shifting the king-bolt, which is atthe front axle withoutmoving the enginewheels.

The construction and operation of my device will be more readily understood by reference to the accompanying drawings, in, which Figure 1 is' a front elevation of an engine with my improvement attached. Fig. 2 is a' front View, and Fig. 3 is a top view, of the device. Fig. 4 is a vertical section on the lines :0 of Fig. 2.

In the top of a block 1, mounted to slide in Serial n. 200,939. (No model.)

grooved guides 2, fastened to thefront axle 3, is provided a footstep-bearing 4 for the king-bolt 5. Near the ends of the axle are threaded lugs 3 and 3 in which work setscrews 6 and 7, that bear against opposite ends axle. A set-screw 8 is provided intthe front of the guide 2 to lock the block 1 firmly 1n. any location.

The operation will be easily understood by reference to Fig. 1, which shows in full lines the front end of the engine and boiler in a position from which it is desired to shift it, say, to the right, for the purpose above noted.

. First the set-screw 8 is unscrewed, then the screw 7 on the right is unscrewed and the screw 6 on the left is screwed up, moving the 1 and 1" of the block 1 to move it along the sliding block 1 to the right and shifting the duced a hand-operated'device for laterally adjusting the front end of atraction or threshing engine to keep the belt in line, which is simple in construction and not diflicult. to apply. In its operation it is independent of any working part ofv the engine and may be used to shift the boiler along the front axle whether the engine be running or not.

WVhat I claim as'my invention, and desire to secure by Letters Patent, is as follows:

1. In combination with the front axle and king-bolt of an engine of the .class described, means for shifting the belt-wheel of said engine laterally, said means comprising guides on said front axle, a sliding block mounted in said guides and having a footstep-bearing for said king-bolt, and means independent of the driving mechanism of the engine adapted to shift said block along the guides for the purpose set forth. I

2. In combination with the axle and kingbolt of an engine of the class described, guides secured lengthwise, said axle; a block slidable along said guides and having a recess to re- In testimony whereof I afiix my signature in ceive said king-bolt; threaded lugs near-the presence of two witnesses. I ends of the axle; screws threaded in said lugs; WELLINGTON BROWN the inner ends of said screws bearing against said sliding block; and a set-screw in said l/Vithesses:

guides to lock the block, substantially as de- 1). L. CHAMBERLIN, scribed. BION R. HUTcruNs. 

